Chris Foresman of Ars Technica conducted an ambitious comparison of the iPhone 4S camera vs. an Olympus point-and-shoot and a Canon DSLR (as well as Samsung’s Galaxy S II phone). The results weren’t conclusive: Foresman says that the best camera is the one you have with you, which was always true and always will be true. But the story’s worth reading and the image samples show just how far camera phones have come.